As a 20 yr user of MapInfo, the ability to work on a map in the layout is huge. Can't stress enough how important that is and how much time it saves.
I'm also very happy with having a base map layer available, though I would like to see a features layer, like cities, with no other map data available as well. Be easy to put on top of other data
Built in geocoding and Drivetime regions are very nice features to have.
Transluency is very helpful as is the label options. Have always been a fan of being able to use expressions in the labeling as well.
The thematic functionality is very useful and combined with Review collected by and hosted on G2.com.